Provider Profile
Mary J. Keegan, APN
Unclaimed ProfileAbout Mary Keegan
Mary J. Keegan, APN is a nurse practitioner — adult health based in Saint Louis, MO. Mary is also listed as specializing in registered nurse, nurse practitioner, and nurse practitioner — acute care. Medicare claims data shows Mary provided 486 services to 379 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, and management using the results of remote vital sign monitoring per calendar month, first 20 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (314) 977-6100
- Email not available
Practice Locations
3660 VISTA AVE
Saint Louis, MO 63110
130 Westmount Dr
Farmington, MO 63640
Conditions and Services Within This Provider's Scope
Within Nurse Practitioner - Adult Health generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Allergies
Allergy & skin
Blood disorders
Bone health
Brain & nerves
Digestive
Digestive health
Eye issues
Foot & ankle
General health
Heart
Heart & circulation
Hormones & endocrine
Infections
Joints & bones
Men's health
Mental health
Pain
Pain & musculoskeletal
Respiratory
Sexual health
Skin
Skin & hair
Skin & nails
Skin issues
Sleep
Urinary
Weight management
Women's health
Procedures & services
Most searched procedures
Acute care
- Tick bite evaluation and treatment
Allergy & immunology
Care coordination
- Specialist referral consult
Clinical exams
Diabetes care
Diagnostics
- In-office urine test
- Rapid flu test
Digestive
Ear care
Endocrine
- Thyroid checkup
Heart & circulation
Heart health
- Blood Pressure Check
- Cholesterol and Lipid Blood Panel
- Heart monitor
Injections
Medication management
Men's health
- Prostate exam
- Testosterone replacement therapy consult
Mental health
Minor procedures
- Incision and drainage of an abscess
- Ingrown toenail removal
- Skin biopsy
- Skin Tag Removal
- Superficial foreign-body removal
- Wart Removal
- Wound care and dressing
Occupational health
Pain & wellness
- Medical Cannabis Evaluation
Pain management
Preventive care
- Colon cancer screening consult
- Medicare wellness visit
- Smoking cessation counseling
- Travel health clinic and vaccines
Respiratory care
Screenings & tests
- Rapid COVID-19 test
- Rapid strep testing
- TB Skin Test
- Urine drug screening
Senior care
Sexual health
Skin care
- Cryotherapy for skin spots
- Mole Check
Sleep
Telehealth
Urgent care
Weight management
- Weight loss medication consult
Women's health
Procedures Most Often Billed to Medicare
486 services · 379 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
98 | More often than most peers in Nurse Practitioner, Adult |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
199 | More often than most peers in Nurse Practitioner, Adult |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
55 | As often as other peers in Nurse Practitioner, Adult |
| Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | Office visit | 99454 |
47 | |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
29 | As often as other peers in Nurse Practitioner, Adult |
| Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | Office visit | 99458 |
25 | |
| Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes | Office visit | 99451 |
17 | |
| Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment | Office visit | 99453 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other nurse practitioners in Saint Louis 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in MO who bill this service to Medicare most often.
Common questions
What kind of doctor is Mary J. Keegan?
Mary J. Keegan is a nurse practitioner in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Adult Health”.
NPI registry
What is Mary J. Keegan's address?
Mary J. Keegan is listed at 3660 Vista Ave, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mary J. Keegan?
The number on file is (314) 977-6100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Mary J. Keegan?
Mary J. Keegan's National Provider Identifier is 1336157213. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Mary J. Keegan train?
Mary J. Keegan attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mary J. Keegan have?
Mary J. Keegan has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mary J. Keegan perform?
According to Medicare billing data, Mary J. Keegan provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mary J. Keegan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mary J. Keegan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.